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Is former Husker quarterback, Sam Keller, NFL material? If you'd ask Keller himself, he would confidently tell you "yes". At the moment, he is still recovering from his collar bone injury he suffered in the Texas game this year. He'll be able to start throwing again in about two weeks, just in time to participate in the East-West Shrine Game on Jan. 19 in Houston. Keller was an average, maybe a…